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 TM 9-2815-226-34-1
3-8. INSPECT CYLINDER BLOCK
a. Inspect cylinder block surfaces for cracks or any other defects.
b. If crack is suspected, apply dye penetrant to surface allowing approximat ely 15 minutes for dye to dissolve or
penetrate defect.
c. Remove excess penetrant and apply developer.
d. If crack detected, discard block.
e. If corrosion (pitting) is found on top of block near liner bores, top surface can be refinished by removing maximum
of 0.010 in. (0.254 mm) of material (para 3-9a).
f. Check water holes to ensure they are open and free from erosion. Maximum erosion from edge of hole is 3/32 in.
(2.38 mm) to maximum depth of 0.003 in. (0.076 mm). Refer to para 3-9k for water hole repair.
3-60
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